JPH01275640A - Crosslinked polyethylene resin foam - Google Patents
Crosslinked polyethylene resin foamInfo
- Publication number
- JPH01275640A JPH01275640A JP10514588A JP10514588A JPH01275640A JP H01275640 A JPH01275640 A JP H01275640A JP 10514588 A JP10514588 A JP 10514588A JP 10514588 A JP10514588 A JP 10514588A JP H01275640 A JPH01275640 A JP H01275640A
- Authority
- JP
- Japan
- Prior art keywords
- low
- density
- foam
- density polyethylene
- polyethylene resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims abstract description 30
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 8
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 8
- 239000011347 resin Substances 0.000 title claims abstract description 8
- 229920005989 resin Polymers 0.000 title claims abstract description 8
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 16
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 16
- 239000000155 melt Substances 0.000 claims abstract description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 abstract description 2
- -1 hexene-1 Chemical compound 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 229940099514 low-density polyethylene Drugs 0.000 abstract 4
- 229920013716 polyethylene resin Polymers 0.000 abstract 1
- 239000011342 resin composition Substances 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 239000004604 Blowing Agent Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 229920001038 ethylene copolymer Polymers 0.000 description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- FYBFGAFWCBMEDG-UHFFFAOYSA-N 1-[3,5-di(prop-2-enoyl)-1,3,5-triazinan-1-yl]prop-2-en-1-one Chemical compound C=CC(=O)N1CN(C(=O)C=C)CN(C(=O)C=C)C1 FYBFGAFWCBMEDG-UHFFFAOYSA-N 0.000 description 1
- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical compound CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 125000005147 toluenesulfonyl group Chemical group C=1(C(=CC=CC1)S(=O)(=O)*)C 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は特に機械的物性に優２′した架橋ポリエチレン
系樹脂発泡体に関するものである◇（従来の技術〉
従来独π気泡を有し、ある程度機械的強度があり、断熱
性の優７ｔ ７．：発泡体として低密度ポリエチレンの
架倫発泡体が知られており、各棟の用途に使用さｎてい
るが、熱風あるいは赤外線ヒーター等で発泡体を軟化さ
せ、成形加工する真空成形、圧縮成形用途では、特に深
絞り形状の場合、高温下での機械的特性を必要とさｎる
のに対し、必ずしも十分ではなかった。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a crosslinked polyethylene resin foam particularly having excellent mechanical properties. 7.: Low-density polyethylene cross-linked foam is known as a foam and is used in various building applications, but it can be heated with hot air or infrared heaters, etc. In vacuum forming and compression molding applications in which foams are softened and molded, mechanical properties at high temperatures are required, but these have not always been sufficient, especially in the case of deep drawing shapes.
こｎらの特性を改善するため特公昭６１−５７３３４号
公報には改良手段として、低密度ポリエチレン１００重
量部に対し、線状低密度ポリエチレン（密度α９１５５
ＣＬ９４ ｇ／ａｔ、メルト２０一レートα５〜５０ｇ
／１０分）を１０〜７０］［置部含有する架橋ポリエチ
レン系樹脂発泡体が提案さｎている。In order to improve these properties, Japanese Patent Publication No. 61-57334 describes the addition of linear low density polyethylene (density α9155) to 100 parts by weight of low density polyethylene.
CL94 g/at, melt 20 rate α5-50g
/10 minutes) from 10 to 70] A cross-linked polyethylene resin foam containing a polymeric compound has been proposed.
（発明が解決しようとする課題〕
前記発明によｎば機械的％注が大巾に改善されるものの
、線状低密度ポリエチレンが低密度ポリエチレンに比べ
曲げ弾性率が大きいなどの傾向にあり、化学架橋剤や発
泡剤を分解しない温度で混線や押出を行う場合機械に過
大な負荷がかかり、商業的規模では生産性が劣るほか場
合によって（工発熱のため分解が発生し、均一な気泡を
有する発泡体が得られにくいなどの欠扉があった。(Problems to be Solved by the Invention) Although the invention greatly improves mechanical properties, linear low-density polyethylene tends to have a higher flexural modulus than low-density polyethylene; Crosslinking or extrusion at temperatures that do not decompose chemical crosslinking agents or blowing agents places an excessive load on the machine, lowers productivity on a commercial scale, and in some cases (decomposition occurs due to heat generation during the process, resulting in uniform bubble formation). There were defects such as difficulty in obtaining foam with the following properties.
本発明の目的は、従来低密度ポリエチレンを原料とした
発泡体で不十分であった機械的特性。The purpose of the present invention is to improve the mechanical properties that conventional foams made from low-density polyethylene had insufficient.
％に高温下での引張強さ、伸びを改良するものであり、
更（安定しかつ均一な発泡倍率、気泡等を有する架橋ポ
リエチレン糸発泡体を提供することにある。% improves tensile strength and elongation at high temperatures,
Another object of the present invention is to provide a crosslinked polyethylene yarn foam having a stable and uniform expansion ratio, cells, etc.
′ （課題を解決するための手段）
即ち本発明ハ密度Ｑ、９１〜０．９３ｇ／ａＩＩＩ、メ
ルトフローレート１ル１０
ポリエチレン１００重を部に対し，密度ａ８８５〜０．
９ １ ５ ｇ／ａｔ、メルトフローレートｌ１ｌＬ５
〜３０ｇ／１０分の低密度エチレン系共重合体を７０〜
１０重量部含有する架橋ポリエチレン系樹脂発泡体に関
する。(Means for Solving the Problems) That is, the present invention has a density Q of 91 to 0.93 g/aIII, a melt flow rate of 1 100 parts by weight of polyethylene, and a density of a of 885 to 0.
9 1 5 g/at, melt flow rate l1lL5
~30g/10min low density ethylene copolymer 70~
It relates to a crosslinked polyethylene resin foam containing 10 parts by weight.
本発明に用いらｎる低密度エチレン系共重合体とは、エ
チレンとα−オレフィン成分はブテン１、ヘキセン１、
４メチルペンテン１、オクテン１などが用いらｎ，また
α−オレフィン含有量は５〜１７％の範囲にあるものが
望ましい。The low-density ethylene copolymer used in the present invention has ethylene and α-olefin components of 1 part butene, 1 part hexene,
4 methylpentene 1, octene 1, etc. are used, and the α-olefin content is preferably in the range of 5 to 17%.
低密度エチレン糸共Ｎ会体は密度がα８８５〜（Ｌ９１
５ｇ／ａｎ’、メルト７０−レートがＱ．５〜５ ０
ｇ／ｌ ０分のものが好ましいが、エリ好！しくはメル
ト７ｏ−レートが１．０〜１０ｇ／１０分のものがあげ
らｎる。The density of the low density ethylene yarn is α885~(L91
5g/an', melt 70-rate is Q. 5-50
I prefer one with g/l of 0 minutes, but I like it! Preferably, those having a melt 7o-rate of 1.0 to 10 g/10 min.
本発明の架橋ポリエチレン糸ｍ脂発泡体は、従来の低密
度ポリエチレン樹脂に、熱分解型発泡剤およびラジカル
発生型架橋剤を添加し，加熱空気を媒体として発泡剤お
工び架橋剤を分解せしめる製造方法をその一！ま使用す
ることができる。The crosslinked polyethylene yarn foam of the present invention is produced by adding a pyrolytic blowing agent and a radical-generating crosslinking agent to a conventional low-density polyethylene resin, and decomposing the blowing agent and crosslinking agent using heated air as a medium. The manufacturing method is part one! Yes, you can use it.
即ち、低密度ポリエチレンと低密度エチレン系共重合体
をブレンドし、こねに公知の熱分解型発泡剤およびラジ
カル発生型架橋剤を添加し、バンバリーミキサ−やξキ
シングロールなどにより加熱混練した後で、押出機など
により発泡性シートを成形する。但しこｎら工程では発
泡剤および架橋剤が熱分解しない条件で行わなければな
らないことはいうまでもない。That is, low-density polyethylene and low-density ethylene copolymer are blended, a known pyrolytic foaming agent and a radical-generating crosslinking agent are added to the mixture, and the mixture is heated and kneaded using a Banbury mixer, ξ mixing roll, etc. , a foamable sheet is formed using an extruder or the like. However, it goes without saying that these steps must be carried out under conditions that do not cause thermal decomposition of the blowing agent and crosslinking agent.
この発泡性シートを所定の温度まで加熱し。This foam sheet is heated to a predetermined temperature.
架橋剤を分解させて架橋し、更に発泡剤の分解にエリ発
泡体となすものであるが、その他にも架橋剤を添加せず
に、発泡性シートを予め成形しｙ：後、電離性放射線を
照射することにより架橋せしめ，加熱後、発泡体とする
方法でもかまわない。The cross-linking agent is decomposed and cross-linked, and the foaming agent is further decomposed to form a foam.In addition, a foamable sheet is preformed without adding a cross-linking agent, and then exposed to ionizing radiation. It is also possible to crosslink the material by irradiating it with irradiation, heat it, and then form it into a foam.
不発明で用いらｎる発泡剤としては、加熱して分解ガス
化する化付物であり、たとえばアゾジカルボンアばド、
ベンゼンスルホールヒドラジド、ジニトロソペンタメチ
レンテトラミン。Foaming agents that can be used in accordance with the invention include chemical compounds that are decomposed and gasified by heating, such as azodicarbonate,
Benzene sulfole hydrazide, dinitrosopentamethylenetetramine.
トルエンスルホニルヒドラジドなトカ用いらｎる。Toluenesulfonyl hydrazide is used.
次に本発明で用いられる架橋剤としては、加熱分解して
ラジカル発生するジクミルバーオキサイド、ｔ−ブチル
クミルパーオーＰ？イド、ジー１−ブチルパーオキサイ
ド、ｔ−ブナルバーオキシインプロビルベンゼンなどが
あげらｎる。Next, as the crosslinking agent used in the present invention, dicumyl peroxide, which generates radicals by thermal decomposition, and t-butylcumyl peroxide P? and di-1-butyl peroxide, t-bunalboxyimprobylbenzene and the like.
また各柚架橋助剤たとえばトリメチロールプロパントリ
アクリレート、トリアリールシアヌＶ−）、トリアクリ
ルホルマール、ジアリルフタレートなどを添加してもよ
い。Further, various crosslinking aids such as trimethylolpropane triacrylate, triaryl cyanine V-), triacryl formal, diallyl phthalate, etc. may be added.
なお本発明の発泡体の特性を損わない範囲で必要に応じ
て、紫外線吸収剤、酸化防止剤、難燃剤、滑剤、顔料等
を添加できることはいうまでもない。It goes without saying that ultraviolet absorbers, antioxidants, flame retardants, lubricants, pigments, etc. can be added as necessary within a range that does not impair the properties of the foam of the present invention.
ｔ！た［離性放射線架橋法の場合（工、α，β。T! [In the case of dissociative radiation crosslinking method (engineering, α, β.
γ，Ｘ線、電子線、中性子線等が用いらｎ，照ｇ４量は
０．５〜４０Ｍｒａｄの範囲が好ましい。When γ, X-rays, electron beams, neutron beams, etc. are used, the amount of radiation is preferably in the range of 0.5 to 40 Mrad.
低密度エチレン系共重合体を１０康童部未満の場合は、
従来の架橋発泡体に比べて者しい機械的特性の改善は見
らｎず，逆に７０電童部以上の場合は、架橋特性が劣る
定め安定した発泡状態が得らｎなくなる。If the low density ethylene copolymer is less than 10 parts,
There is no obvious improvement in mechanical properties compared to conventional crosslinked foams, and on the other hand, if it exceeds 70 parts, the crosslinking properties are poor and a stable foamed state cannot be obtained.
更に本発明になる発泡体の用途として、単体のみで加熱
成形加工さｉＬるのみならず一ｐｓａｒ塑性フィルムを
基材とした離形フィルムに予め粘着剤を塗布し貼り合わ
せ、加熱成形〃０工した時、同時に塑性変形を生じさせ
て、粘Ｎ列付成形加工品を得ることができる。もちろん
この他にも従来の低密度ポリエチレン樹脂架橋発泡体と
何ら変わりなく、発泡体同志の熱融着加工、塩ビシート
、布、ゴムシートなどとの接着剤加工などの汎用加工が
可能であることはいうまでもないＯ
（実施例）
以下に本発明の実施例につき説明する。Furthermore, as a use of the foam of the present invention, it is possible not only to heat-form it alone, but also to apply an adhesive to a release film made of a 1 psar plastic film as a base material and bond it together, and then heat-form it in 0 steps. At the same time, plastic deformation is caused and a molded product with viscous N-rows can be obtained. Of course, in addition to this, it is no different from conventional low-density polyethylene resin cross-linked foams, and general-purpose processing such as heat-sealing the foams together, adhesive processing with PVC sheets, cloth, rubber sheets, etc. is possible. (Examples) Examples of the present invention will be described below.
実施例１
低密度ポリエチレン（スミカセンＧ−２０２、密度ａ９
１９メルトフローレート１．５、住友化学株式会社製）
９０重量部、低密度エチレン糸共Ｎ 曾体（工／ ＊
Ｖ ７ Ｖ Ｌ ２００． 密度０．９００、メルトフ
ローレート２．０住友化学株式会社！＆）１０ｍｆｉ部
にアゾジカルボンアばド（ビニフォールＡＣ１永和化成
株式会社製）１５１童部、ジクミルパーオキサイド（バ
ークミルＤ、日本油脂株式会社製）Ｑ、９ＴＬ量部を加
え、１３０℃ロール混練し４０配φ押出機にて厚さ３配
り発泡用シートを作成した。Example 1 Low density polyethylene (Sumikasen G-202, density a9
19 melt flow rate 1.5, manufactured by Sumitomo Chemical Co., Ltd.)
90 parts by weight, low density ethylene thread N
V 7 V L 200. Density 0.900, melt flow rate 2.0 Sumitomo Chemical Co., Ltd.! &) Add 151 parts of azodicarbonate (vinifol AC1 manufactured by Eiwa Kasei Co., Ltd.), 9 TL parts of dicumyl peroxide (Bark Mill D, manufactured by NOF Corporation) to 10 mfi parts, and roll knead at 130°C. A foam sheet with 3 thicknesses was prepared using a 40mm diameter extruder.
この発泡用シートを２６０℃のオーブン中で約６分間加
熱したところ、表面平滑で均一な独立気泡を有する架橋
発泡体が得らｒ′Ｌｙ：。When this foaming sheet was heated in an oven at 260°C for about 6 minutes, a crosslinked foam with a smooth surface and uniform closed cells was obtained.
央り例２
低密度ポリエチレン（冥ｍ例１に同じ）３ＯＮ量部と低
密度エチレン糸共１１Ｌ付体（実施例１に同じ）７０重
量部にアゾジカルボンアシド１５″１ＩＬｆ＃部、ジク
ばルバーオキサイド０．９重ｔｉｔ部を加え、実施例１
と同様にして発泡用シートを作成し、２３０℃で約６分
間加熱したところやはり表面平滑な独立気泡を有する架
橋発泡体が得ら２′した。Center Example 2 3ON parts of low-density polyethylene (same as Example 1) and 70 parts by weight of 11L low-density ethylene thread (same as Example 1), 15"1ILf# part of azodicarbonate, and dikubalbar Adding 0.9 fold tit part of oxide, Example 1
A foamed sheet was prepared in the same manner as above and heated at 230°C for about 6 minutes, resulting in a crosslinked foam having closed cells with a smooth surface.
比較例
低密度ポリエチレン（実施ψｊ１に同じ）１００重量部
にアゾジカルボンアミド１５重量部、ジクミルパーオキ
サイドａ８重量部を加え、実施例１と同様にして発泡用
シートを作成し、２３０℃で約６分間加熱し架橋発泡体
を作成した。Comparative Example A foaming sheet was prepared in the same manner as in Example 1 by adding 15 parts by weight of azodicarbonamide and 8 parts by weight of dicumyl peroxide a to 100 parts by weight of low-density polyethylene (same as in Example ψj1). It was heated for 6 minutes to create a crosslinked foam.
得られた架橋発泡体の物性を表−１に示す。Table 1 shows the physical properties of the obtained crosslinked foam.
なお成形性の評価は直径５０ｍ１Ｉｌφ、深さ３０〜５
０ＩＩＩＩ′ｍに可変可能なメス型で成形加工後、架橋
発泡体が加熱延伸さｎ切断に至ったかどうかを目視観察
した。The moldability was evaluated using a diameter of 50m1Ilφ and a depth of 30-5.
After molding using a female mold that can be adjusted to 0III'm, the crosslinked foam was visually observed to see if it had been heated and stretched and cut.
表−１
（発明の効果）
本発明（工ｎば低密度エチレン糸共亘合体を含有した架
橋発泡体を工、機械的％性、特に鍋温での伸びに優ｒｔ
たｖｆ徴を示している。またこの得らｎた架橋発泡体は
、独立気泡でみかけ密度。Table 1 (Effects of the Invention) The present invention (using a cross-linked foam containing a low-density ethylene thread co-polymerization material) has excellent mechanical properties, especially elongation at pan temperature.
It shows vf symptoms. Moreover, this obtained cross-linked foam has closed cells and an apparent density.
熱伝導率も低いため、エアコン、カークーラー等の結露
防止用断熱拐や、ビデオケース、健康マット用芯材の複
雑形状成形品に最通である。Due to its low thermal conductivity, it is most suitable for use as insulation to prevent condensation in air conditioners and car coolers, as well as for complex-shaped molded products such as core materials for video cases and health mats.
Claims (1)
ローレートが１〜１０ｇ／１０分である低密度ポリエチ
レン１００重量部に対し、密度が０．８８５〜０．９１
５ｇ／ｃｍ＾３、メルトフローレートが０．５〜３０ｇ
／１０分である低密度ポリエチレン系共重合体が１０〜
７０重量部含有されてなる架橋ポリエチレン系樹脂発泡
体。1. Density is 0.885-0.91 for 100 parts by weight of low-density polyethylene having a density of 0.91-0.93 g/cm^3 and a melt flow rate of 1-10 g/10 min.
5g/cm^3, melt flow rate 0.5-30g
/10 minutes for low density polyethylene copolymer
A crosslinked polyethylene resin foam containing 70 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10514588A JPH01275640A (en) | 1988-04-27 | 1988-04-27 | Crosslinked polyethylene resin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10514588A JPH01275640A (en) | 1988-04-27 | 1988-04-27 | Crosslinked polyethylene resin foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01275640A true JPH01275640A (en) | 1989-11-06 |
Family
ID=14399565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10514588A Pending JPH01275640A (en) | 1988-04-27 | 1988-04-27 | Crosslinked polyethylene resin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01275640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047340A (en) * | 1990-04-24 | 1992-01-10 | Hitachi Chem Co Ltd | Crosslinked polyethylene resin foam |
| KR100237857B1 (en) * | 1997-08-11 | 2000-01-15 | 권문구 | Plastic foaming sheet manufacturing method |
-
1988
- 1988-04-27 JP JP10514588A patent/JPH01275640A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047340A (en) * | 1990-04-24 | 1992-01-10 | Hitachi Chem Co Ltd | Crosslinked polyethylene resin foam |
| KR100237857B1 (en) * | 1997-08-11 | 2000-01-15 | 권문구 | Plastic foaming sheet manufacturing method |
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